I was really on the fence and uncertain about my own choice of helmets until I got the worst helmet-bonking to date. With that said, I could write a romance novel about my WRSI helmet now.
I have a full-face attachment for my WRSI, but I hardly ever use it (and didn't have it for the worst-upside beating I've had). I've also never even skimmed my face, even with all the frequent paddling I do. On top of that, I wear glasses when I paddle (not even sport-glasses) and they've never been scraped either.
I am aware a lot of people have had their face worked when upside down, and I think it has to do with panic/technique/not-tucking in, etc. So it's a personal choice.
My chinstrap falls out of adjustment frequently though, so it's become a routine for me to tighten it every time I get in the boat. If there's one thing I might change, it's some-how frankenstein-fitting the Shred-Ready Hand-Of-God strap, to my WRSI; I just find that system very convenient.
Incidentally, WRSI helmets are more multi-impact-oriented than Sweet, (for better, or worse). So they will last longer, but how that helps or hinders impacts to your head is up for debate. I know for a fact my helmet is sufficient, though.
So while I prefer Shred Ready for comfort, I have never actually bonked my head with one on, so I can't account for that at all. I know for certain WRSI works, after what my head has been through, though.